| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
10-05-2023, 12:31 PM
|
||||
|
||||
Cam thoughts
This is the sft that my builder has chosen with help from his guy at Bullet. It's to replace my solid roller that was damaged.
250/256 606/607 installed at 104 Going in my 472 stroker, being dynoed Monday.
__________________
69 Firebird 472, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 10.90 @123 |
| The Following User Says Thank You to 461-69bird For This Useful Post: | ||
|
#2
10-05-2023, 02:01 PM
|
||||
|
||||
|
Nice.... I guess you'll find out Monday if they did a good job on the cam selection.
Good luck with the dyno session. |
|
#3
10-05-2023, 03:24 PM
|
||||
|
||||
|
Quote:
Are the KRE heads stock or ported? Stan
__________________
Stan Weiss/World Wide Enterprises Offering Performance Software Since 1987 http://www.magneticlynx.com/carfor/carfor.htm David Vizard & Stan Weiss' IOP / Flow / Induction Optimization - Cam Selection Software http://www.magneticlynx.com/DV Download FREE 14 Trial IOP / Flow Software http://www.magneticlynx.com/DV/Flow_..._Day_Trial.php Pontiac Pump Gas List http://www.magneticlynx.com/carfor/pont_gas.htm Using PMD Block and Heads List http://www.magneticlynx.com/carfor/pont_pmd.htm |
|
#4
10-05-2023, 04:06 PM
|
||||
|
||||
|
10.75 and the heads, 85cc d ports are 300
__________________
69 Firebird 472, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 10.90 @123 |
|
#5
10-06-2023, 10:59 AM
|
||||
|
||||
|
Sounds like a nice build! Good luck with the dyno session.
__________________
Jim Moshier 1971 Grand Prix 462ci SD Performance 6x heads 1962 Catalina 389 1968 Firebird 400-455 I haven't decided "If we ever forget that we're one nation under GOD, then we will be a nation gone under." - Ronald Reagan |
|
#6
10-06-2023, 12:20 PM
|
||||
|
||||
|
Sounds kind of mild to me. My first roller 455 E head motor had a 259/262 @ 0.050 UD lobes and was fairly streetable, not at idle but on the rollers it would even pass emissions on the sniffer!
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
|
#7
10-06-2023, 01:21 PM
|
||||
|
||||
|
Quote:
I'm not chasing every last hp this time, just want a low maintenance bracket engine that I can drive on the street.
__________________
69 Firebird 472, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 10.90 @123 |
| The Following User Says Thank You to 461-69bird For This Useful Post: | ||
|
#8
10-06-2023, 01:24 PM
|
|||
|
|||
|
__________________
'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) 5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
|
#9
10-06-2023, 02:26 PM
|
||||
|
||||
|
Got ya thought it was a SR. I ran an UD 288/292 255/259 @ 0.050 SFT in my RAIV 400. Pretty lumpy in a 400 least vacuum of any cam I had in it.
I am all in for a low maintenance motor too!
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
|
#10
10-06-2023, 02:56 PM
|
||||
|
||||
|
Is that lift with 1.5 rockers ?
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
|
#11
10-06-2023, 03:35 PM
|
||||
|
||||
|
Quote:
__________________
69 Firebird 472, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 10.90 @123 |
|
#12
10-06-2023, 05:13 PM
|
|||
|
|||
|
__________________
'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) 5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
|
#13
10-06-2023, 08:45 PM
|
||||
|
||||
|
I ran a 455 at 11.4:1 static CR with stock 16 D-ports and an Ultradyne 255/263 duration @0.050" solid flat tappet and the car went 11.4 in the 1/4 as a point of reference.
__________________
1967 Firechicken, 499", Edl heads, 262/266@0.050" duration and 0.627"/0.643 lift SR cam, 3.90 gear, 28" tire, 3550#. 10.01@134.3 mph with a 1.45 60'. Still WAY under the rollbar rule. |
| The Following User Says Thank You to AG For This Useful Post: | ||
|
#14
10-07-2023, 07:11 AM
|
||||
|
||||
|
Well seeing as your 1.65 rockers will add 3 to 4 more degrees over the nose of the cam and considering what you have for intake flow with those heads I would say that you will have no less then 550 Hp.
More might be on tap depending on the manifold your running . Will the motor have headers?
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
|
#15
10-07-2023, 08:02 AM
|
||||
|
||||
|
Quote:
__________________
69 Firebird 472, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 10.90 @123 |
|
#16
10-07-2023, 08:25 AM
|
||||
|
||||
|
Maybe start with 1.5:1 on the Exhaust? And stay with it.
|
|
#17
10-07-2023, 11:31 AM
|
||||
|
||||
|
No not buying anymore parts for this, it will have to do with what I've got
__________________
69 Firebird 472, KRE 85cc, Victor, 850xp, TH400, TSP 9.5" 4800, 3.90 10 bolt, Viking DA rears, QA1 single fronts, 3558lbs. best to date 10.90 @123 |
| Reply |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Linear Mode
